{% setvar book_path %}/reference/kotlin/androidx/_book.yaml{% endsetvar %} {% include "_shared/_reference-head-tags.html" %}

AndroidJUnit4

class AndroidJUnit4 : Runner, Filterable, Sortable

kotlin.Any
↳	org.junit.runner.Runner
	↳	androidx.test.ext.junit.runners.AndroidJUnit4

A JUnit4 runner for Android tests.

This runner offers several features on top of the standard JUnit4 runner,

Supports running on Robolectric. This implementation will delegate to RobolectricTestRunner if test is running in Robolectric enviroment. A custom runner can be provided by specifying the full class name in a 'android.junit.runner' system property.
Supports a per-test timeout - specfied via a 'timeout_msec' argument.
Supports running tests on the application's UI Thread, for tests annotated with .

Usage @RunWith(AndroidJUnit4.class)

Summary

Public constructors
`AndroidJUnit4(klass: Class<Any!>!)`

Public functions
`Unit`	`filter(filter: Filter!)`
`Description!`	`getDescription()`
`Unit`	`run(runNotifier: RunNotifier!)`
`Unit`	`sort(sorter: Sorter!)`

From class org.junit.runner.Runner

Int

testCount()

AndroidJUnit4(klass: Class<Any!>!)

fun filter(filter: Filter!): Unit

Throws
`org.junit.runner.manipulation.NoTestsRemainException: org.junit.runner.manipulation.NoTestsRemainException`

fun getDescription(): Description!

fun run(runNotifier: RunNotifier!): Unit

fun sort(sorter: Sorter!): Unit